Mask frame for use with mask assembly in the application of continuous positive airway pressure (CPAP)



FIG. 1 is a front perspective view of a mask frame for use with a mask assembly in the application of CPAP processes according to an embodiment of my design;

FIG. 2 is a front view thereof; and,

FIG. 3 is a rear view thereof.

The broken lines shown in FIGS. 1–3 disclose unclaimed subject matter, are for environmental purposes only, and thus form no part of the claimed design. The dotted lines shown in the Figures represent the borders between claimed subject matter and unclaimed subject matter and form no part of the claimed design. 

The ornamental design for a mask frame for use with a mask assembly in the application of continuous positive airway pressure (CPAP), as shown and described. 